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BES(北京谱仪)发现了奇特粒子态X(1835).述评近年来把X(1835)解释为Skyrme模型中的N(N|-)-重子偶素的工作.有2个证据支持这种解释:1)存在N(N|-)-经典Skyrmion解,其结合能为-10MeV;2)这种Skyrmion-重子偶素的衰变是由X(1835)中的p-(p|-)经由量子隧穿而湮没所引起的,因此最可几的衰变道是X(1835)→η4π或X(1835)→η′2π.这些导致了对BES实验数据的合理解释,特别是关于X(1835)最可几的衰变模式的预言.该预言对实验有价值.
BES (Beijing spectrometer) found a strange particle state X (1835). In this paper, we review the work of explaining X (1835) as N (N | -) - baryon in the Skyrme model in recent years. There is 2 evidence to support this explanation: 1) There is an N (N | -) - classical Skyrmion solution with a binding energy of -10 MeV; 2) The decay of this Skyrmion-baryon is given by p - (p | -) is annihilated via quantum tunneling, the most decisive decay channel is X (1835) → η4π or X (1835) → η’2π. These led to a reasonable interpretation of the BES experimental data, especially the predictions of the most decay patterns of X (1835). This prediction is of value to the experiment.